Flushing device.



No. 822,306. PATENTED JUNE 5, 1906.

J. N. SANGER.

. FLUSHING DEVICE.

APPLICATION FILED JAN.12.1903.

WITNESSES: l INVENTOR BY wer srA r JOHN, N. SANGER, on NEW YORK, N.

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rgnN'r orrron.

Y., ASSIGNOR, BY MESNE ASSIGN- MENTS, TO'FRED-ADEE COMPANY, OF NEW YORK,N. Y., A CORPO- RATION OF NEW YORK.

Specification of Letters Patent. Application filed January 12, 1903.

' FLUSHlNC-Su DEVICE.

Patented. June 5, 1906.

Serial No- 138.642.

To a, whom it may concern;

Be it known that 1, JOHN N. SANGER, a citizen of the United States, anda resident of Brooklyn'Hills, borough of Queens, county of Queens, cityand Stateof New York, have invented certain new and useful Improvementsin Flushing Devices, of which the fol lowing is a specification.

My invention relatesto flushing devices, particularly such as are usedin connection with water-closets; I

The object of my present invention is to provide an efficient,substantially-constructed, and readily-dismembered flushing device ofthat class in which the flow of the water is started by opening acontrolling-valve andin which provision is made for a continued flow ofwater during a limited period of time following the closing of saidvalve for the purthe outlet-comp artment A which is separate pose ofrefilling the bowl of the water-closet after flushingit.

The invention will befully described hereinafter and the features ofnovelty pointed out in the appended claim.

Reference is to be'had to the accompanying drawings, in which Figure 1is a central sectional elevation of one form of my improved flushingdevice, and Fig. 2 an inverted plan of the main valve.

The casing A, of substantially cylindrical shape, has an inlet A leadingto the inletchamber A and an outlet A connected with Theinlet-chambercommunicates with the opposite end of the casing through the medium of achannel A which at its upper end leads to a water receiving or comression compartment A, from the inlet-chamb er A by a piston B Thispiston is connected, as by a rod 0, with the main valve controlling theconnection of the inlet-chamber A with the outlet-compartment A. Indetail, this valve has, a disk D, adapted to engage a seat A, located atthe junction of the inlet chamber A with the outlet-compartment A, sothat the seating of said disk will completely interrupt the direct flowof water from the inlet to the outlet. The valve is tween the inlet Ainner surface of the outlet-compartment A. A cylindrical dportion F1 ispreferably located between the isk D and the arms E. It will lyeunderstoodv that the spaces between the arms will form ports for thepassage of water as soon as the upper ends'of the arms are raised abovethe valvc seat A", and the area of these ports will increase as thevalve rises and diminish as it falls, and this with articular rapidityif the arms E are taperet as described, so as toxincrcase the width ofthe ports, as well as their h oi ght, when the piston rises.

At. the orifice b ywhich the channel A com mu-m'cates with thereceiving-compartment I prefer to locate the regulating-valve G,preferably in the nature of a needle-valve mounted to screw foradjustment. From a point of the receiving-compartment which ispreferably in the same transverse plane with the upper end of thechannel A and diametrically opposite thereto a controlling-channel Aleads to the outlet-compartment A. At the upper end of this channel aseat A is formed in the receiving-compartment A for thecontrolling-valve H, which is located within said compartment, so thatit would be in the path of the piston B if the travel of the said pistonwere not limited by a stop, as will be set forth presentl preferablyarranged to c ose as by box J The valve H is I valve projects throughthe casing to the handle H.

The end of the casing adjacent to the receiving-compartment A isprovided with a screw-cap K, which preferably carries a stop L, arrangedto arrest the piston B before it collides with the valve H and beforeit. covers the upper orifice of the channel A. The stop is preferablyadjustable relatively to the cap K, so that the travel of the pistonmaybe varied. As shown, the stop has a screw connection with the cap.

Fig. 1 illustrates the normal position of the parts when the valve-diskD and valve H are seated so that there is no communication beand theoutlet A Water may, however, pass from the inlet A. to thereceiving-compartment A through the channel A so that said compartmentwill be filled the valve II will close, so that the and the pistonB willbe balanced, as the pressure will be the same on both of its "aces. Nowwhen it is desired to produce a flushing action the controlling-valve IIis pressed inward,-s 0 as to admit water from the receiving-compartmentA through the channel A to the outlet-c )mpartment A and the outlet APrior to this the inlet-chamber A has held the valve-disk D to its seatA. As soon, however, as communication is established from the receivingcompartment A to the outlet the pressure in said compartment becomesless than that in the inlet-chamberA. New inasmuch as the piston B is oflarger diameter than the elt'ective surface of the valve-disk I) thepressure on the lower surface of the piston becomes sutlicient to raisesaid piston,-and with it the valve-disk, so as to establish acommunication from the inletchaml er A" to the outletcompartment Athrough the valve-scat A as soon as the cylindrical valve portion Frises above said seat. The upward movement of the piston is arrested bvthe stop L. As soon as the lmobor handle II is released reduction ofpressure due to the discharge through the channel A will cease. if anequal pressure were restored immediately on both sides of the piston l3,the valve-disk I) would be forced back on its seat almost instantly.This is prevented, however, and the seating of the valve-disk isretarded owing to the checking of the water-supply to the compartment Aby the regulatingwalve G. In consequence thereolthc piston will move soas to and to allow of the seat the valve-dish slowl} The [low so-calledafter fill of the bowl.

of water through the valve-seat A will be.

diminished gradually owing to the progressive decrease in the size ofthe ports formed by the spaces between the arms i The decrease will bequicker if the arms E are tapered toward their free ends, as shown. Thetime required lor the sealing ol" the valvedisk 1) can be regulated byadjusting either thestop liorthe needle-valve G. This valve,

water-pressure in the l l l l however, is always open during operationof the flushing device.

If for any reason repairs should have to be made to any interior part,the needle-valve G will be closed and the cap K will be removed. As thisrelieves the pressure on the upper surface of the piston, the latterwill be thrown upward, (even if the connection of the outlet A with thewater-closet should be interrupted, as by turning a stop-cock,) and thepiston, with the valve attached thereto, would be blown out through thetop of the casing A if the valve H did not act as a stop under thesecircumstances. The valve will stop the piston before it covers theorifice of the channel A'*- adjacent to the needlevalve G, so that theoperation of the last-named valve may be tested readil v.

hat I claim as new, and desire to secure by Letters Patent, is-

The combination, with the casing having an inlet-com n1rtment and anoutlet-com the normal )artmcnt with a valve-seat between them of a valvearranged to close upon said seat, a piston connected with but distantfrom said valve and separating the inlet-eompartn'lent from areeeiving-compartment, a channel connecting saidreceivirig-compartmentwith the i nlet-com partment, another channelconnecting the receiving-compartmcnt with the outlet-compartment, a capfor closing the end of the receiving-ctnnpartment opposite to thepiston, a stop carried by the cap and arranged to normally arrest thepiston and a controlling-valve for normally closing the channel whichconnects the reeeiving-eompartment with theoutlet-compartment, saidcontrolling-valve projecting into the receiving-compartment to serve asa stop for the piston when the cap is removed.

I have signed my In testimony whereof m the presence of

